sqlite/test/subtype1.test
drh e5dea28482 Prevent subtype values from slipping across a subquery boundry when the
subquery is implemented as a co-routine.

FossilOrigin-Name: 9e51a6c0fbfb1899b2b01888430125fba6d4da9bad9eeaa3ad41e29fca54bbe5
2022-06-09 17:17:14 +00:00

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# 2015-09-10
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements tests for sqlite3_value_subtype() and
# sqlite3_result_subtype() interfaces.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_execsql_test subtype1-100 {
SELECT test_getsubtype('hello');
} {0}
do_execsql_test subtype1-110 {
SELECT test_getsubtype(test_setsubtype('hello',123));
} {123}
do_execsql_test subtype1-120 {
SELECT typeof(test_setsubtype('hello',123));
} {text}
do_execsql_test subtype1-130 {
SELECT test_setsubtype('hello',123);
} {hello}
# 2022-06-09
# https://sqlite.org/forum/forumpost/3d9caa45cbe38c78
#
# Avoid carrying subtypes through into a subquery that has been flattened
# or to which the outer WHERE clause has been pushed down.
#
reset_db
do_execsql_test subtype1-200 {
CREATE TABLE t1(a); INSERT INTO t1 VALUES ('x');
CREATE VIEW t2(b) AS SELECT json(TRUE);
CREATE TABLE t3(b); INSERT INTO t3 VALUES(json(TRUE));
}
do_execsql_test subtype1-210 {
SELECT * FROM t3, t1 WHERE NOT json_quote(b);
} {1 x}
do_execsql_test subtype1-220 {
SELECT * FROM t2, t1 WHERE NOT json_quote(b);
} {1 x}
do_execsql_test subtype1-230 {
WITH t4(a) AS MATERIALIZED (SELECT json(1)) SELECT subtype(a) FROM t4;
} {0}
do_execsql_test subtype1-231 {
WITH t4(a) AS NOT MATERIALIZED (SELECT json(1)) SELECT subtype(a) FROM t4;
} {0}
finish_test